Enthusiast PC cooling expert Koolance introduced its latest product, a 120 mm high-flow fan for cases, air-coolers, and radiators, but we're inclined to think it's designed to let users make the most out of smaller 2-fan radiators. The FAN-12038HBK-184 from Koolance measures 120 x 120 x 38 mm, it draws power from a 3-pin fan header and includes speed monitoring. With a top-speed of 4,000 RPM, the fan can push 184 CFM of air with a rated maximum noise output of 59 dBA. Since it spins at tremendously high speeds and uses a high amperage motor (2.0A), Koolance cautions its users to use a grill along with it, as its blades pose a safety hazard. At $11.99, the Koolance FAN-12038HBK-184 is relatively affordable compared to similar fans from Sanyo-Denki/San-Ace, Delta, PanaFlo, or Yate Loon.

I have a Koolance fan on my CPU rad in my computer, and it's a monster. By far the most CFM I've ever seen in any fan (but it's friggin noisy). If this thing is supposed to be 24W, I think it might actually rip a whole in the fabric of the universe with it's airflow.

EDIT: Should also mention, that I agree with needing a fan grill. I have gotten my finger jammed in my Koolance and it took a far chunk of skin off.